References
- Lindmayer, J. & Wrigley, C. Y., Fundamentals of Semi conductor Devices (D. Van Nostrand Co. Inc., Princeton, N.J.), Chaps. 4 and 5, 1965.
- Bogachev, V. M., Radio Engng Electronic Phys. (USA) 10 (1965). 124.
- Marshak, A. H., IEEE Trans., ED-14 (1967), 190.